Dave Barrett is a Managing Partner at Polaris Partners in Boston. See sector focus, stage focus and contact routes.
Dave Barrett is a Managing Partner at Polaris Partners in Boston, where he co-leads the technology investment practice and joined the firm in 2000 after a prior career as a technology operating executive and entrepreneur[1][4]. He focuses his investment thesis on enterprise software, artificial intelligence, healthcare technology, care delivery, and data-centric platforms powered by machine learning, targeting early-stage companies[4][9]. His typical check size ranges from $300,000 to $2.0 million, with a sweet spot around $500,000, and he often secures board seats indicating a lead or active investor role[3][9]. Notable portfolio companies include Cohere Health, Simon Data, Automattic, and Egnyte, where he holds board positions or has played a key growth role[2][4]. Barrett distinguishes himself by partnering specifically with data science and AI innovators aiming to transform healthcare, fintech, and cybersecurity, while actively mentoring entrepreneurs in MIT, Harvard, and TechStars communities[7]. He serves on the Board of Trustees for the Dana-Farber Cancer Institute and the URI Foundation, reflecting his deep commitment to healthcare and education beyond investing[7][8].
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